﻿#region Copyright(c) 2006 ZO, All right reserved.
// -----------------------------------------------------------------------------
// Copyright(c) 2006 ZO, All right reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   1.  Redistribution of source code must retain the above copyright notice,
//       this list of conditions and the following disclaimer.
//   2.  Redistribution in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//   3.  The name of the author may not be used to endorse or promote products
//       derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// -----------------------------------------------------------------------------
#endregion


#region Using directives

using System.ComponentModel;

#endregion

namespace ZO.SmartCore.Protocols.XMPP.Protocol.Common
{
    /// <summary>
    /// possible types for Presence.
    /// </summary>
    public enum PresenceType
    {
        /// <summary>
        /// sender is online and available for communication.
        /// </summary>
        [Description("available")]
        Available = -1,

        /// <summary>
        /// An error has occurred regarding processing or delivery of a previously-sent presence stanza.
        /// </summary>
        [Description("error")]
        Error = 6,

        /// <summary>
        /// pretending to be off-line
        /// </summary>
        [Description("invisible")]
        Invisible = 5,


        /// <summary>
        /// A request for an entity's current presence; SHOULD be generated only by a server on behalf of a user.
        /// </summary>
        [Description("probe")]
        Probe = 7,

        /// <summary>
        /// The sender wishes to subscribe to the recipient's presence.
        /// </summary>
        [Description("subscribe")]
        Subscribe = 0,

        /// <summary>
        /// The sender has allowed the recipient to receive their presence.
        /// </summary>
        [Description("subscribed")]
        Subscribed = 1,

        /// <summary>
        /// Signals that the entity is no longer available for communication.
        /// </summary>
        [Description("unavailable")]
        Unavailable = 4,

        /// <summary>
        /// The sender is unsubscribing from another entity's presence.
        /// </summary>
        [Description("unsubscribe")]
        Unsubscribe = 2,

        /// <summary>
        /// The subscription request has been denied or a previously-granted subscription has been cancelled.
        /// </summary>
        [Description("unsubscribed")]
        Unsubscribed = 3
    }
}
